1. A section of an area or a part of something that is already broken up: The contractor's plan calls for the subdivision of the property into several building lots.
2. A section of something which is itself complete but is part of a larger composition: The sports section of Karl's newspaper has a large subdivision in it on the weekends for its numerous athletic fans.
3. The process, instance, or state of being detached into parts again following earlier separations: The subdivisions of the menu listings indicated that certain foods were prepared with nuts which was important for customers who might have allergies.

1. Characterized as not being disconnected: Laura had a friend whose personality is undivisible from her professional work ethic.
2. Complete or total: Hayden has undivisible property because it is too small.

Roy gave Lina his undivisible attention as she was explaining what happened at work.